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Published In: Index Musei Plantarum Cryptogamarum [3]. 1803. (Index Mus. Pl. Crypt.) Name publication detail

Project Name Data (Last Modified On 1/31/2013)
Acceptance : Accepted
Project Data     (Last Modified On 10/7/2017)
Plant Category: Mosses
country distribution: Ecuador, Peru, Bolivia, NW Argentina
EcoRegions: Páramo, Puna, Open montane, Dry Inter-Andean Valleys
elevation: 2000-2500, 2500-3000, 3000-3500, 3500-4000, 4000-4500, 4500-5000
substrate: soil, rocks
frequency: infrequent

Notes     (Last Modified On 10/7/2017)
Ecology: Dry inter-Andean valleys and open grassland or shrubby dry montane; on soil and rocks. Elevation: 2000-4700 m (Ecuador: 3700-4120 m, Peru: 2550-4400 m, Bolivia: 3020-4700 m, NW Argentina: 2000 m).Distribution: Widespread.
Syntrichia ruralis is characterized by the absence of a stem central strand, ovate-lanceolate to ovate-lingulate leaves to ca. 3 mm, emarginated to acute apices, entire, recurved margins, excurrent costa with a hyaline, mostly spiculose hair point (ca. 1/4 the lamina length), upper dorsal costal surface weakly to strongly papillose (serrate), unistratose lamina. At least three taxa, S. obtusissima, S. princeps, and S. ruralis, exhibit similar morphologies, subspathulate to lingulate leaves with revolute leaf margins and a long, sharply toothed awn; S. ruralis differs from the other two species by the absence of a central strand, and basal hyaline cells smaller (10-22 µm wide), both S. obtusissima and S. princeps exhibit a central strand and basal cells usually larger (20-40 µm wide). The latter two species differ as follows: S. obtusissima usually has an emarginated or retuse leaf apex, and the costa is yellowish- or brownish-hyaline, and not serrate, S. princeps exhibits an acute-rounded leaf apex, and reddish costa, distinctly serrate on back.
Syntrichia ruralis se caracteriza por la ausencia de cordón central en el tallo, hojas ovado-lanceoladas a ovado-linguladas hasta ca. 3 mm, ápices agudos emarginados, márgenes recurvados, enteros, costa excurrente con un tricoma hialino, generalmente una punta capilar espiculada (ca. ¼ del largo de la lámina, superficie dorsal superior de la costa débilmente a marcadamente papilosa (serrada), lámina uniestratificada. Por lo menos tres taxa, S. obtusissima, S. princeps y S. ruralis, presentan morfología similar, hojas subestpatuladas a lingüiforme con márgenes revolutos y una arista larga, nítidamente dentada; S. ruralis se diferencia de las otras dos especies por la ausencia de cordón central, y células basales hialinas menores (10-22 µm de ancho), tanto S. obtusissima como S. princeps presentan cordón central y células basales generalmente mayores (20-40 µm de ancho). Las últimas dos especies se diferencian por lo siguiente: S. obtusissima generalmente tiene los ápices de las hojas emarginados o retusos, y la costa es amarillenta o marrón-hialina y no serrada, S. princeps presenta los ápices de las hojas agudo-redondeados, y costa rojiza, conspicuamente serrado en el envés.



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